gbowne1 version of implementation with more implementations done #4
@ -1,5 +1,10 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="GitSharedSettings">
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<option name="FORCE_PUSH_PROHIBITED_PATTERNS">
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<list />
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</option>
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</component>
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<component name="VcsDirectoryMappings">
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<mapping directory="" vcs="Git" />
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</component>
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15
main.c
15
main.c
@ -1,11 +1,19 @@
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#include <stddef.h>
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#include <stdio.h>
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#include <unistd.h>
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<<<<<<< HEAD
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#include <stdlib.h>
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=======
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#include <sys/syscall.h>
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>>>>>>> origin/main
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#define ALIGN16(s) (((s) + 15) & ~0x0F)
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#define BLOCK_SIZE sizeof(struct block)
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<<<<<<< HEAD
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#define MINIMUM_BLOCK_SIZE (sizeof(struct block) + 16)
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=======
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#define MINIMUM_BLOCK_SIZE 4
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>>>>>>> origin/main
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/// The memory block's header.
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struct block
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@ -28,12 +36,18 @@ struct block *extend_heap(size_t s)
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if (s < MINIMUM_BLOCK_SIZE)
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s = MINIMUM_BLOCK_SIZE;
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<<<<<<< HEAD
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struct block *b = (struct block *)sbrk(0); // Get the current break
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// Add the size of the block header to the requested size
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s += BLOCK_SIZE;
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if (sbrk(s) == (void *)-1) // Extend the break by s bytes
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=======
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struct block* b = (struct block*)syscall(SYS_brk, NULL);
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if ((void*)syscall(SYS_brk, (char*)(b + 1) + s) == (void*)-1)
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>>>>>>> origin/main
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return NULL;
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b->size = s;
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@ -269,6 +283,7 @@ int main()
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printf("Test 1: %i\n", *a);
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printf("Test 2: %i\n", *b);
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printf("Heap Size: %zu Bytes\n", get_heap_size());
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free(a);
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free(b);
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|
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